Re: [Brahms-dev-l] TimeOffset Calibration for TOFW

From: Hironori Ito <hito@rcf.rhic.bnl.gov>
Date: Wed Nov 26 2003 - 21:03:35 EST
READ e-mail before asking questions.  There were more than a few emails 
regarding this issues.

Hiro

yin.zhongbao@fi.uib.no wrote:

>Hi.
>
>I have done TimeOffset calibration for TOFW. So far I combine e.g. runs 
>8417 - 8459 in one batch and runs 8494 - 8505 in another batch. The reason 
>for combining these run numbers is simply to obtain enough statistics. 
>When looking at the output timing offsets I see a difference of ~8 ns 
>between these batches. From the first batch I typically get offsets 
>for different slats in the range -45 - -50 ns, while the second batch 
>gives offsets in the range -36 - -42. Is there anyone who could point 
>me to the reason for this difference as I believe it is significant? 
>Was there some cable changed and started at which run number? 
> 
>Best regards,
>Zhongbao
>-----------------------------------------------------
>Zhongbao YIN                 Phone:  +47-55-582792 (O)
>Address:                             +47-55-276803 (H)
>  Fantoftveien 14G 466       E-mail:
>  5075  Bergen                  Yin.Zhongbao@fi.uib.no
>------------------------------------------------------
>
>
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Received on Wed Nov 26 21:03:56 2003

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